MAINTENANCE
SERVICE MANUAL NUMBER 26
5.
Insert a small wire (repeatedly) to make sure that vent holes and water drain holes and
passages (as shown) are unobstructed and open.
e
b
d
c
f
c
a
70134
f
71216
a - Speedometer Pitot Tube
b - Gear Housing Cavity Drain Hole
c - Trim Tab Cavity Vent Hole
d - Trim Tab Cavity Drain Passage
e - Gear Housing Water Drain Hole (One Each - Port and Starboard)
f - Gear Housing Cavity Vent Hole
6.
Crank engine over SLIGHTLY, with starter motor, to purge any water trapped in seawa-
ter pickup pump. DO NOT ALLOW ENGINE TO START.
CAUTION
If boat is in the water or is to remain in the water, seacock (if equipped) must remain
closed until engine is to be restarted, to prevent water from flowing back into
cooling system. If boat is not fitted with a seacock, seawater inlet hose must remain
disconnected and plugged, to prevent water from flowing into cooling system
and/or boat. As a precautionary measure, attach a tag to the ignition switch or
steering wheel with the warning that the seacock must be opened or the seawater
inlet hose reconnected prior to starting the engine.
7.
After cooling system has been drained completely, coat threads of drain plugs with
Quicksilver Perfect Seal and reinstall. Tighten drain plugs securely. Reconnect hoses
and tighten all hose clamps securely. If NOT equipped with seacock: seawater inlet
hose must remain disconnected and plugged until engine is to be restarted.
IMPORTANT: MerCruiser recommends that propylene glycol antifreeze (nontoxic
and biodegradable, which makes it friendly to lakes and rivers) be used in seawater
section of the cooling system for cold weather or extended storage. Make sure that
the propylene glycol antifreeze contains a rust inhibitor and is recommended for use
in marine engines. Be certain to follow the propylene glycol manufacturer’s recom-
mendations.
Index
Page 1B-24
90-861329--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 181 CID |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(6 votes, average: 5 out of 5)
Marine readers have rated Mercury MerCruiser GM 4 Cylinder 181 cid 3.0L Marine Engines Service Manual Number 26 5.0 out of 5.0 based on 6 product reviews. Thanks for sharing this material. Helps a lot after suffering with bad mechanics. spend too much money and nothing very good
great manual, makes impossible jobs possible. without a manual you can not do the job, a must have.
Great resource. Excellent information provided.
Need help to install automate choke
Need help to instal automate choke